Adjustable threshold



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- V. FRISQUE ADJUSTABLE THRESHOLD Filed April 29-, 1926 \\\\\\\\\\n Inn Inventor Attorney ill Patented Aug. it), 192.

iihll'l'E ST ADJUSTABLE THRESHOLD.

Application filed April 29, 1926.

This invention relates to an improved adjustable threshold for providing a weatherproof joint between the bottom of a door or other closure, and sill with which it coacts.

My principal aim is to generally improve upon inventions of this character by providing one of comparative simplicity and durability, capable of being installed in a new house, or incorporated in a door construction of an old house.

One feature of construction is a pliable spring pressed weather plate which bears yieldably yet tightly against the bottom edge of the door and maintains an effective joint even in cases where the door sags.

Another feature of the invention is a spring means for maintaining the weather plate in effective contact with th door, wherein this means includes a device for adjusting the tension of the spring.

Other features and advantages of the invention will become apparent from the following description and drawings.

In the drawings Figure 1 is a bottom plan view of a fragmentary portion of a door structure, floor and a part of this invention.

Fig. 2 is an enlarged view showing the invention more in detail.

Fig. 3 is a further detail view showing the manner in which the weather plate cooperates with the door frame.

Fig. l is a detail view of a modification to be hereinafter described.

Referring to the device in detail, and confining attention more particularly to Fig. 2, it will be seen that the reference character 1 designates the sill. In the present instance, this is formed in its bottom and adjacent its inner longitudinal edge with a recess 2 forming a pocket. The sill is bored to provide a hole thru the top and communicating with this recess 2 and this bore serves to accommodate a coiled spring, 3 which is associated with one-half section 4: of an adjusting block 5. The lower half section 6 of this block is mounted for adjustment on the screw threaded portion of a rotary adjusting rod 7.

It will be noted that this rod has its in nor end swiveled in a strip 8 fastened to the inner edge of the sill 1. Also, it will be seen that the contacting surfaces of the half sections of the block are beveled. Then Serial No. 185,465.

too, it will be noticed that the outer end of the operating rod 7 extends beyond the outer longitudinal edge of the sill and is provided with a wrench engaging portion 9. lVith this arrangement, it will be seen that by engaging a wrench with the part 9 and turning the rod 7, the block sections may be actuated to adjust the tension of the coiled spring 8.

The reference character 10 designates one of the side members of the door frame and the door is indicated by the reference character 11. It will be noticed that the door is provided on its bottom with a wear plate 12 and packing 13 of appropriate material is interposed} 'between the door and this plate.

The main weather plate is of a length equal to that of th sill and it is preferably of a pliable body of metal including a horizontal flat portion 14 having a downturned edge 15 and an outwardly and downwardly inclined portion 16 terminating in ahorizontal attaching flange 17. The flange 17 is attached by appropriate fastenings to the still 1 as indicated in Fig. 2. Packing 18 is interposed between the flange and the sill and allows a slight rocking up and down of the plate owing to the resilient nature of the plate and also the compressible nature of th packing.

The opposite ends of the plate are pro vided with upstanding flanges 19 which are slidable in pockets formed in the door frame members 10 as shown in Fig. 3. It will be noticed that a retaining and confining plate 20 is attached to the frame here and a guideway is thus provided for the vertically movable flanges 19.

The reference character 21 designates a portion of a sub-floor and 22 represents the main floor, and it will be noticed that a dust guard 23 is attached to the flooring 22 and has slidable contact with the downturned edge portion 15 of the weather plate as shown in Fig. 2.

Attention is directed to the fact that in installing the device in a new house, it is made as specifically described and shown in Fig. 2. However, in some instances it is necessary to employ an ordinary rectangular frame as indicated in Fig. 4, to take the place of the solid sill represented in Fig. 2. In Fig. 4, the reference character 24 designates one of the end members of the open frame and 25 corresponds to the aforesaid mounting strip 8. If desired, the metal corner braces 27 may be employed to insure rigidity of construction.

In an old house where the sill is worn too thin to accommodate the spring adjusting device, I propose to substitute an open rectangular frame as represented in Fig,

From the foregoing description, it will be seen that I have evolved and produced a novel structure wherein the weather plate is pressed firmly but yieldably against the wear plate on the bottom edge of the swinging door. The degree of movement of the wear plate is very slight and it does not interfere with the easy closing of the door. lVhen closed, however, the spring main tains it in firm contact with the door. It is believed that by considering the disclosure in connection with the description, a clear understanding of the invention and advair tages will be had. Therefore a more lengthy description is thought unnecessary.

Minor changes coming within the field of invention claimed may be resorted to if desired.

Having thus described my invention, what I claim as new is 1. In a structure of the class described, a weather plate adapted to be interposed between the bottom edge of a door and a sill beneath said door, said plate having a flat horizontal portion for contact with the door, having its inner ends downturned and having its opposite ends directed outwardly and downwardly and terminating in 'a horizontal attaching flange, said downwardly directed portion of the plate being provided at its opposite ends with upstanding flanges.

2. In a structure of the class described, a weather plate adapted to be interposed between the bottom edge of a door and a sill beneath said door, said plate having a flat horizontal portion for contact with the door, having its inner end downturned and having its opposite end directed outwardly and downwardly and terminating in a horizontal attaching flange, said downwardly directed portion of the plate being provided at its opposite end with upstanding flanges, and retaining members adapted to be attached to vertical members of a door and to cooperate with recesses formed in said frame members in forming apocltet for slidable recegtion of the upturned flanges on said wear plate.

3. In a structure of the class described, a sill, a rod extending transversely of the said sill and mounted for rotation, said rod being provided with a screw threaded portion, a spring adjusting block comprising half sections having cooperating beveled surfaces, the lower half section being adjustably mounted on said rod, and a coiled spring cooperable with the upper section of the block.

In testimony whereof I aflix my signature.

VICTOR FRISQUE. 

